這是個有關Comparative advantage的問題.... 下表是Country A and B 的 wheat and rice production [table][tr][td]
[/td][td=1,1,72]
Wheat [/td][td]
Rice [/td][/tr] [tr][td]
Country A [/td][td]
40units [/td][td]
20 [/td][/tr] [tr][td]
Conutry B [/td][td]
20 [/td][td]
10 [/td][/tr][/table] 兩國的opportunity cost 都是 2 wheat/rice or 0.5rice/wheat 問題是..為何Country B 會有comparative advantage on producing rice 而 country A 有comparative advantage on producing wheat 我問完人, 他說因為plot PPF出來後會看到with trade的話 會有change in slope (黑curve) 紅點: country A produces only wheat while country B produces only rice  我看不到slope有甚麼特別....究竟是我plot 錯還是在這case之中,兩國都沒有comparative advantage on wheat/ rice production? |